Earlier quoted context omitted.
Apple's upgrade cycle (for me) has moved from 4 years to ~6 years. Maybe upgrading the RAM or HD could be useful, but wear and tear on all components is a bigger concern for me than just one. My laptop is a critical part of my life. I can't risk being out of service for a week while parts arrive. Its like buying a car... you can repair and maintain it to 200k miles, but the reliability will go down as more things bre…
Off topic but I think many models of cars, when properly maintained , have very predictable and good reliability.
For example, my 2018 Honda fit has a part recall. The service center needs the car the entire day and the tank to be less than 25%. This isn't something new cars would have to deal with.